We have no Google map plugin of any kind. We also do not have a radius search field usage for searching within a radius of zip codes or anything of the sort. You'd need a 3rd party plugin or extension for that. Several users here have used Geocode Factory to provide such functionality, but I've no experience with it. If you don't mind foregoing the map or radius based searching then a userlist, which is built in functionality of CB, can search exact addresses or partial addresses at least.